Method and apparatus for improved fiber optic light management

Details Method and apparatus for improved fiber optic light management Method and apparatus for improved fiber optic light management

1997-03-13

1999-09-14

Palmer, Phan T. H.

Optical waveguides

Optical fiber bundle

385123, 385116, 385120, G02B 604

Patent

active

059534770

ABSTRACT:
Improved techniques for manipulation and management of fiber optic light. An improved fiber optic probe assembly for low light spectrographic analysis improves response to subtle light-matter interactions of high analytical importance and reduces sensitivity to otherwise dominant effects. This is accomplished by adjusting the illumination and collection fields of view in order to optimize the probe's sensitivity. Light manipulation is applied internal to the fiber so that the probe's delivery pattern and field of view do not require external manipulation and are not adversely affected by investigated media. This allows the light delivery pattern or field of view or both to be aggressively steered off-axis to achieve significant increased performance levels. Aggressive beam steering is accomplished by employing internally reflective surfaces in the fiber. A reflective metal coating or low refractive index coatings or encapsulants can be used to ensure total internal reflection. The fibers also incorporate filters, cross-talk inhibitors and other features that provide a high performance probe in a robust package. Design variations provide side viewing, viewing through a common aperture, viewing along a common axis, and other features.

REFERENCES:
patent: 3796905 (1974-03-01), Tomii et al.
patent: 3874783 (1975-04-01), Cole
patent: 3906241 (1975-09-01), Thompson
patent: 3910677 (1975-10-01), Becker et al.
patent: 4191446 (1980-03-01), Arditty et al.
patent: 4380365 (1983-04-01), Gross
patent: 4449535 (1984-05-01), Renault
patent: 4573761 (1986-03-01), McLachlan et al.
patent: 4615581 (1986-10-01), Morimoto
patent: 4654532 (1987-03-01), Hirschfeld
patent: 4707134 (1987-11-01), McLachlan et al.
patent: 4812003 (1989-03-01), Dambach et al.
patent: 4816670 (1989-03-01), Kitamura et al.
patent: 4914284 (1990-04-01), Halldorsson et al.
patent: 4919891 (1990-04-01), Yafuso et al.
patent: 4979797 (1990-12-01), Nemeth
patent: 4995691 (1991-02-01), Purcell, Jr.
patent: 5011254 (1991-04-01), Edwards et al.
patent: 5011279 (1991-04-01), Auweter et al.
patent: 5037180 (1991-08-01), Stone
patent: 5074632 (1991-12-01), Potter
patent: 5112127 (1992-05-01), Carrabba et al.
patent: 5146917 (1992-09-01), Wagnieres et al.
patent: 5166756 (1992-11-01), McGee et al.
patent: 5196005 (1993-03-01), Doiron et al.
patent: 5253312 (1993-10-01), Payne et al.
patent: 5263952 (1993-11-01), Grace et al.
patent: 5269777 (1993-12-01), Doiron et al.
patent: 5330465 (1994-07-01), Doiron et al.
patent: 5402508 (1995-03-01), O'Rourke et al.
patent: 5404218 (1995-04-01), Nave et al.
patent: 5421928 (1995-06-01), Knecht et al.
patent: 5432880 (1995-07-01), Diner
patent: 5710626 (1998-01-01), O'Rourke et al.
patent: 5764840 (1998-06-01), Wach
Boiarski A., "Fiber Optic Particle Concentration Sensor", SPIE vol. 566 Fiber Optic and Laser Sensors III, 1985, pp. 122-125.
Krohn D., "Intensity Modulated Fiber Optic Sensors Overview", SPIE vol. 718 Fiber Optic and Laser Sensors IV, 1986, pp. 2-11.
McCann, B., "Specialty Optical Fibers Resolve Challenging Application Problems", Lightwave, Nov. 1994, pp. 48, 51-52.
Tan, W. et al., "Submicrometer Intracellular Chemical Optical Fiber Sensors", Science, vol. 258, Oct. 30, 1992, pp. 778-781.
Russo, V. et al. "Microlens--Ended Fibers: A New Fabrication Technique", Insituto di Ricerca sulle Onde Elettromagnetiche, Firenze, Italy, pp. 21-27.
Ku, R.T. "Progress in Efficient/Reliable Semiconductor Laser-to-Single-Mode Fiber Coupler Development", pp. 4-6, 1984.
Shintaku, Toshihiro, et al. "Connection Mechanism of Physical-Contact Optical Fiber Connectors with Spherical Convex Polished Ends", Applied Optics, vol. 30, No. 36, pp. 5260-5265, 1991.
Shintaku, Toshihiro, et al. "Highly Stable Physical-Contact Optical Fiber Connectors with Spherical Convex Ends", Journal of Lightwave Technology, vol. 11, No. 2, pp. 241-248, 1993.
Kanda. Torahiko et al. "A New Spherical Mirror-Finish Surface Machining Technology for Optical Fiber Connector", NEC Res. & Develop., vol. 36, No. 2, pp. 271-279, 1995.
Russo V. and Margheri, G. "Lens Ended Fiber-Fiber Connections for Power Laser Applications", SPIE, vol. 701 ECOOSA, pp. 220-225, 1986.

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